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Dr. Brennan is on Doximity

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Education & Training

  • Wellspan Health/York Hospital
    Wellspan Health/York HospitalResidency, Internal Medicine, 1975 - 1977
  • Wellspan Health/York Hospital
    Wellspan Health/York HospitalResidency, Internal Medicine, 1972 - 1973
  • York Hospital
    York HospitalInternship, Transitional Year, 1971 - 1972
  • Ohio State University College of Medicine
    Ohio State University College of MedicineClass of 1971

Certifications & Licensure

  • OH State Medical License
    OH State Medical License Active through 2015

Hospital Affiliations